package ny.com.demo516;
import java.io.*;
public class TestFile {
    public void setData(String filename,String data) throws IOException{
        FileWriter fileWriter=new FileWriter(filename);
        BufferedWriter bufferedWriter=new BufferedWriter(fileWriter);
        bufferedWriter.write(data);
        bufferedWriter.close();
    }
    public void getData(String filename) {
        FileReader fileReader=null;
        try{
            fileReader=new FileReader(filename);
            BufferedReader raeder=new BufferedReader(fileReader);
            String data;
            while ((data= raeder.readLine())!=null){
                System.out.println(data);
            }
        }catch (IOException e){
            throw new RuntimeException(e);
        }
        finally {
            System.out.println("不管是否发生异常都会执行finally里边的代码");
        }
    }
}
